Carnotaurinae

Carnotaurines Temporal range: Late Cretaceous, 99.6–66 Ma PreЄ Є O S D C P T J K Pg N
Mounted cast of a Carnotaurus sastrei skeleton, Chlupáč Museum, Prague
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Dinosauria
Order:	Saurischia
Suborder:	Theropoda
Family:	†Abelisauridae
Subfamily:	†Carnotaurinae Sereno, 1998
Type species
†Carnotaurus sastrei Bonaparte, 1985
Subgroups
See text.

Carnotaurinae is a subfamily of the theropod dinosaur family Abelisauridae. It includes the dinosaurs Aucasaurus (from Argentina), Carnotaurus (from Argentina), and Rajasaurus (from India). The group was first proposed by American paleontologist Paul Sereno in 1998, defined as a clade containing all abelisaurids more closely related to Carnotaurus than to Abelisaurus.^[1]

Classification

• Subfamily Carnotaurinae
  • Indosuchus (India)
  • Lametasaurus (India)
  • Brachyrostra
    • Ekrixinatosaurus (Argentina)^[2]
    • Ilokelesia (Argentina)^[2]
    • Viavenator (Argentina)
    • Skorpiovenator (Argentina)^[2]
    • Tribe Carnotaurini
      • Abelisaurus (Argentina)
      • Aucasaurus (Argentina)
      • Carnotaurus (Argentina)
      • Pycnonemosaurus (Brazil)
      • Quilmesaurus (Argentina)^[3]

Phylogeny

In 2008, Canale et al. published a phylogenetic analysis focusing on the South American carnotaurines. In their results, they found that all South American forms (including Ilokelesia) grouped together as a sub-clade of Carnotaurinae, which they named Brachyrostra, meaning "short snouts." They defined the clade Brachyrostra as "all the abelisaurids more closely related to Carnotaurus sastrei than to Majungasaurus crenatissimus."^[2]

Carnotaurinae	Majungasaurus Brachyrostra  Carnotaurini  Carnotaurus Aucasaurus Ilokelesia   Skorpiovenator Ekrixinatosaurus

An analysis conducted by Tortosa et al. in 2013 moved several Carnotaurine taxa into the newly named Majungasaurinae, and moved many abelisaurids into Carnotaurini.

Abelisauridae	Kryptops Rugops Genusaurus MCF-PVPH-237 abelisaurid Xenotarsosaurus Tarascosaurus La Boucharde abelisaurid   Majungasaurinae Pourcieux abelisaurid Arcovenator Majungasaurus Indosaurus Rahiolisaurus Rajasaurus Brachyrostra Ilokelesia   Ekrixinatosaurus   Skorpiovenator   Carnotaurini Abelisaurus Aucasaurus Pycnonemosaurus Quilmesaurus Carnotaurus

See also

• Timeline of ceratosaur research

References

1. Sereno, P.C. (1998). "A rationale for phylogenetic definitions, with application to the higher-level taxonomy of Dinosauria". Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 210 (1): 41–83.
2. Canale, Juan I.; Scanferla, Carlos A.; Agnolin, Federico L.; Novas, Fernando E. (2008). "New carnivorous dinosaur from the Late Cretaceous of NW Patagonia and the evolution of abelisaurid theropods". Naturwissenschaften. 96 (3): 409–14. doi:10.1007/s00114-008-0487-4. PMID 19057888.
3. "A new abelisaurid dinosaur from the Late Cretaceous of southern France: Palaeobiogeographical implications". Annales de Paléontologie. 100: 63–86. doi:10.1016/j.annpal.2013.10.003.